XML Serialize object with DataTable

I'm trying to serialize a *List* of objects, where each object contains a DataTable.  I'm just using the XmlSerializer, out of the box.  The result I'm getting is that each object (in the resulting XML) is defining a custom type for the DataTable, as listed at the bottom.  My question is, how can I get the generated XML to define this complex type *once*, and use it for every object in my result?

Oh, and I'm using C#, but examples in VB would be just fine.

Thanks!

                <xs:schema id="NewDataSet" xmlns="" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
                  <xs:element name="NewDataSet" msdata:IsDataSet="true" msdata:MainDataTable="PropertiesA" msdata:UseCurrentLocale="true">
                    <xs:complexType>
                      <xs:choice minOccurs="0" maxOccurs="unbounded">
                        <xs:element name="PropertiesA">
                          <xs:complexType>
                            <xs:sequence>
                              <xs:element name="Value" type="xs:string" minOccurs="0" />
                              <xs:element name="ColumnName" type="xs:string" minOccurs="0" />
                              <xs:element name="DataType" type="xs:string" minOccurs="0" />
                              <xs:element name="FrameworkDataType" type="xs:string" minOccurs="0" />
                              <xs:element name="IsIdentity" type="xs:boolean" minOccurs="0" />
                              <xs:element name="DbDataType" type="xs:string" minOccurs="0" />
                            </xs:sequence>
                          </xs:complexType>
                        </xs:element>
                      </xs:choice>
                    </xs:complexType>
                  </xs:element>
                </xs:schema>

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